Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual page 148

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
3 Lines/Trunks
Selecting Line/Trunk Options
3. In the table under the T1 Trunks heading, write the channel number or
numbers for each trunk type and/or, for Tie or All Tie, check the Tie-PBX,
Toll, or S56 boxes.
4. Under the Frame Format heading, do either of the following:
5. Under the Suppression (Line Code) heading, do either of the following:
6. For T1 operation only, under the Signaling Mode heading, for all boxes that
describe T1 modules, do either of the following:
7. Under the Line Compensation heading:
a.
b.
To retain the factory setting, check D4 Compatible.
To change the factory setting, check Extended Superframe (ESF).
To retain the factory setting, check AMI-ZCS.
To change the factory setting, check B8ZS.
To retain the factory setting of robbed-bit signaling, check Robbed-
Bit Signaling (RBS).
To change the factory setting to common-channel signaling, check
Common-Channel Signaling (CCS).
NOTE:
CCS is not an option with T1 when you use a 100D module
of apparatus code 517M15 or later. CCS is used primarily for
an earlier "AT&T Proprietary" connection between a MERLIN
LEGEND Communications System and a DEFINITY
®
System 25 system. If CCS is required, a prior release of the
module is needed. A 100D module of apparatus code
517M15 or later does not work in the following situations:
— If a 64-kbps clear data channel is required between
connected systems and PRI is not an option.
— If the customer is replacing a 100D module
programmed as CCS, either an older 100D module
that supports CCS with T1 must be used, or PRI must
be programmed on both connected systems.
Fill in the approximate distance (number of cable feet) between the
100D module and its channel service unit (CSU) or other far-end
connection in the space provided next to Cable Feet.
Use Table 3-3 to select the Line Compensation setting needed. (The
factory setting is 1.)
Issue 1
April 1999
3-26
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